Devices for, or methods of, sealing or securing package folds or closures Devices for gathering or twisting wrappers, or necks of bags

BPERFORMING OPERATIONS TRANSPORTING B65Thin material handling B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS UNPACKING

B65B51/00Devices for, or methods of, sealing or securing package folds or closures Devices for gathering or twisting wrappers, or necks of bags

B65B51/02Applying adhesives or sealing liquids B65B51/023using applicator nozzles B65B51/026using rotating applicators B65B51/04Applying separate sealing or securing members B65B51/043Applying springy clips around bag necks B65B51/046Applying a closure element to the mouths of bags B65B51/05Stapling B65B51/06Applying adhesive tape B65B51/062to the mouths of bags B65B51/065to the necks of bags B65B51/067to the closure flaps of boxes B65B51/07Sewing or stitching B65B51/08Applying binding material B65B51/10Applying or generating heat or pressure or combinations thereof B65B51/12by resilient means B65B51/14by reciprocating or oscillating members B65B51/142Closing bottle necks or tubes B65B51/144Closing paperboard containers B65B51/146Closing bags B65B51/148Hand-operated members B65B51/16by rotary members B65B51/18by endless bands or chains B65B51/20by fluid pressure acting directly on folds or on opposed surfaces B65B51/22by friction or ultrasonic or high-frequency electrical means B65B51/222by friction welding B65B51/225by ultrasonic welding B65B51/227by induction welding B65B51/24to produce bead seals B65B51/26Devices specially adapted for producing transverse or longitudinal seams in webs or tubes B65B51/28Rollers for producing longitudinal and transverse seams simultaneously B65B51/30Devices B65B51/303reciprocating along only one axis B65B51/306Counter-rotating devices B65B51/32Cooling, or cooling and pressing, package closures after heat-sealing